Hi Matt. Which batteries do you use for the 9kWh battery bank? At the moment I’ve got a single 100w panel and a 70Ah lead acid leisure battery (with a Victron 75/15 controller) which I would like to expand into a larger system. I’d be interested to know where you got your batteries from and if you’d recommend a particular brand/make. Also, which inverted are you using? Is it a pure sine wave type? So far I’ve been sticking to DC only and use this system to charge USB powerbanks, which in turn I use to power my portable devices. I know there’s losses with DC-DC conversion but figured it was better than a DC-AC-DC process.